<!DOCTYPE html>
<html>
  <head>
    <meta charset=UTF-8>
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Angular 2 Hello World</title>
    <base href="/">
  </head>
  <body>
    <hello-world>
      加载中...
    </hello-world>
    <script src="bundle.js"></script>
  </body>
</html>